Power-transmitting device.



E. F. MONTGOMERY & R. B. BURNHAM.

POWER TRANSMITTING DEVICE APPLICATION FILED MAY 9' 1916-.

22, 1918. I 2 sums-4am" 1.

Patented Jan.

whom 1% E-[F- MONTGOMERY 61 R. B. BURNHAIVI.

POWER TRANSMITTING DEVICE.

APPLICATION FILED MAY 9,1916.

Patented Jan. 22, 1918.

2 SHEETS-SHEET 2.

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EDWARD F. MONTGOMERY AND REUBEN B. BURNHAM, OF BURKEVILLE, TEXAS,ASSIGN- OBS, BY DIRECT AND MESNE ASSIGNMENTS, 0F SEVENTY ONE-HUNDREDTHST0 SAID BURNT-TAM AND FIFTEEN ONE-HUNDREDTI-IS TO J. F. WESTBROOK, 0FBURKE- VILLE, TEXAS, AND FIFTEEN ONE-HUNDREDTHS TO S. H. WES'IBROOK, OFFARRS- VILLE, TEXAS.

POWER-TRANSMITTING DEVICE.

manners.

Application filed May 9, 1916.

To all whom it may concern Be it known that we, EDWARD F. Monr- GOMEKYand REUBEN B. BURNHAM, citizens of the United States, residing atBurkeville, in the county of Newton and State of Texas, have inventednew and useful Improvements in Power-Transmitting Devices, of which thefollowing is a specification.

This invention relates to a power trans mitting device, its object beingto provide a device by means of which power taken from any suitablesource may be economically transmitted and multiplied, for the purposeof driving machinery or other purposes.

A further object of the invention is to provide a power transmittingdevice composed of primarily driven cam wheels operating through asystem of vibrating levers for transmitting rotary motion to a drivenshaft from which the applied power is to be trans mitted, the sets oflevers actuated by the respective cams operating alternately andintermittently through ratchet mechanism to turn the driven shaft andthereby impart continuous driving motion thereto.

The invention consists of the features of construction, combination andarrangement of parts herein fully described and claimed, reference beinghad to the accompanying drawings in which i Figure 1 is a side elevationof a ower transmitting device embodying our invention.

Fig. 2 is a top plan view of the same.

Fig. 3 is an opposite side elevation.

Fig. 4 is a front elevation.

Figs. 5 and 6 are vertical transverse sections on the lines 5-5 and 6-6of Fig. 1.

Referring to the drawings, 1 designates a suitable base or foundation,from which rise pairs of bearing or supporting stand ards 2, 3 and 4:.Journaled upon the standards 2 is a driving shaft 5, one end 6 of whichis provided with a crank 5 or other means for applying power theretofrom a suitable source, such as a water wheel, wave power apparatus, orany other primary source of power.

The shaft 5 carries a pair of cam wheels or disks 6 and 7 which may beunited for operation as a unit, and the outer faces of these respectivecam wheels or disks are pro Specification of Letters Patent.

Patented Jan. 22, lfill.

Serial No. 96,432.

vided with cam grooves 6 and 7 which are preferably of square orrectangular formation as shown, thus providing angular points orprojections 8, for a purpose hereinafter described. The grooves and campoints of the two wheels or disks arearranged at an angle to each otherand at different angles to the shaft or their center of rotation, thecorresponding points of the cams being arranged at angles of 90 to eachother, as shown.

Arranged on each side of the double cam wheel or disk is a set or seriesof motion transmitting levers, each comprising a primary lever 9 havingat one end a friction roller 10 to travel in the adjacent cam groove,said lever being fulcrumed between its center and opposite end upon arod 11, the ends of said rod being supported by the standards 3. Therollers 10 are thus carried by the long arms of the levers 9, and theshort arms of said levers are connected by links 12 with the shortarms-of secondary levers 13.

The levers 13 are fulcrumed upon a rod or shaft 14: supported by thestandards 3, and each lever 13 has its arm provided with a weight 15,which may be adjustably mounted thereon, and which is designed toapproximately balance the weight of the long arm of the associated lever9, whereby through the balancing action obtained case of working motionis secured. The long arm of each lever 13 is connected by a link 16 withone, the long, arm of a tertiary or final lever 17, which is fulcrumedbetween its center and one end upon a transverse rod. or shaft 18supported by an upright 19, said upright having guide slots to receivethe pivoted ends of the levers 17, which are thus guided in motion andlimited in lateral play from looseness due to wear or other causes.

The short arms of the lever 17 have pivotally connected therewith, as at20, rack bars 21 and 21' which have lower toothed ends or faces 22,which mesh with ratchet wheels 23 and 23 on a transverse driven shaft 24journaled in suitable bearings on the uprights 4, and from which shaftmotion may be transmitted through a pulley 25 or other means to thedevice, machine or apparatus to be driven. The ratchet wheels have theirteeth facing in the same direction, and in the action of each rack barsaid bar is adapted to slide upward, on its into engage the teeth andimpart motion to the ratchet wheel, a spring 26 or other elasticconnection being provided between the upper end of each rack bar and astationary part of the frame to normally hold the toothed end of saidrack bar in engagement with the ratchet wheel and permit the same torecede or have riding motion on the ratchet'teeth on the inactive motionof said rack-bar.

In the operationof the device, it will be understood that the driveshaft 5 is primarily driven from any suitable source of power andtransfers motion to the double camwheel, by which rocking motions willbe imparted throughout to the sets of levers the levers of each setbeing moved alternately and in opposite directions in unison so thatwhen one rack bar is on its working stroke the other will be on itsreturn stroke, and vice versa, thus imparting anintermittent motiontothe driven shaft through the medium of each set of power devices,which is converted into continuous motion by the alternate powertransmitting action of the two sets of power devices, it being evidentthat the rocking motion imparted to the two Sets of levers isobtained'from the cam points 8 of the two cam grooves which are arrangedonlines intermediate each other and at such angular relationship as tosecure the working action described. 7

be multiplied to a considerable degree, and

the power obtained may be varied by vary- '1 ing the fulcrum points ofthelevers as desired. It will also be evident that by the use of theweights 15 the levers 9 and 13 are balanced in action while said weightsoperate to hold the long arms of the levers 9 upward and thus maintainthe friction rollers 10 thereof in engagement with the inner walls ofthe cam grooves provided with the points 8, whereby a positive andreliable working motion is obtained.

I claim 2- In a device of the class described, the combination with adriving wheel having cams in its opposite faces; of a series ofmultiplying levers pivoted between their ends, rollers on the long armsof the first levers engaging said cams, links connecting the short armsof the first and second levers and the long arms of the second andtertiary levers, means on the last-named levers for transmitting powerto a driven element, and weights on the short arms of the second leverscounterbalancing them and said first levers.

In testimony whereof we aflix our signatures in presence of twowitnesses.

EDXVARD F. MONTGOMERY. REUBEN B. BURNHAM. Witnesses:

STEPHEN H. lVns'rnnoon, J OHN C. ADEN.

flopiesrof this patent. may be obtained for five cents each, byaddressing the Commissioner of Patents. Washington, D. 6.

